DNS Simple question

Discussion in 'Server Operation' started by jankarlitos, Jun 19, 2009.

  1. jankarlitos

    jankarlitos New Member


    This is the simplest question probably ever made. I have always set up a DNS BUT for only for LANs.

    1. For implementing a DNS server in Internet the machine MUST have 2 NICs ? one with a public IP and one with a private one?

    2. Let's say i need 2 DNS servers, in different machines, within a Master and Slave configuration

    DNS Master: ns1.domain.com
    DNS Slave: ns2.domain.com

    In this scenario i would need both machines with 2 NICs each and 2 public IPs an 2 private IPs?

    Thanks a lot...
  2. id10t

    id10t Member

    No, you just need 2 different IP addresses - either on same box or not, on same NIC or not. OF course, 2 boxes will give you the most redundancy
  3. jankarlitos

    jankarlitos New Member

    HI id10t, thanks for answering

    when you tell me "2 different IP addresses"... you mean a public and a private one? right?
  4. Ben

    Ben ISPConfig Developer ISPConfig Developer

    no. i mean who shall contact the private ip for dns lookups? ;)

    so two official IP adresses.

    the only case where "private" IPs help, in case you have a private network in behind so that the dns servers stand in the perimeter / dmz.

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